There has been some discussion as to who made some of the old inlaid chips. From Dale Seymour's book on antique chips I found that Harris Co. made these chips in the 1890's and into the 1900's. USPC Co. made them from the turn of the century up to the 1940's. Burt made them also but unsure of their time frame. Can anyone tell who made what. Here are a few inlaids from through the years.